Correcciones

many teenagers think they know all about a healthy diet . but their parents are often not agree with the opinion of children, they believe that the children are too small to know enough about a healthy diet .

I agree with the opinion of the parents . most of the children consider themselves smarter and wiser than their parents, although this is not so . parents always know more because they are older and have more experience of life .

I believe that young people should learn to listen to their parents and follow their advice . all parents want their children only good, so their advice is always good . children love junk food and a little know and its effects on health . therefore, parents should pay more attention to healthy nutrition of their children . however, if your child is old enough, and he can control his power, then you do not need to control and take care of him . in the modern world of healthy nutrition in fashion, so most of the young persons of 15 years of know enough and how to eat . thus, I believe that children and their parents should talk more about a healthy diet . then all will be happy and healthy